svn-gvsig-desktop / branches / CqCMSDvp / libraries / libCq CMS for java.old / src / org / cresques / ui / cmd / CmdMeasure.java @ 2312
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/*
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* Cresques Mapping Suite. Graphic Library for constructing mapping applications.
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*
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* Copyright (C) 2004-5.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,USA.
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*
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* For more information, contact:
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*
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* cresques@gmail.com
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*/
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package org.cresques.ui.cmd; |
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import java.awt.Cursor; |
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import java.awt.geom.Point2D; |
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import org.cresques.ui.CQCursor; |
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import org.cresques.ui.CQMapCanvas; |
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/**
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* Comando measure.
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* A?ade al canvas la capacidad de medir distancias.
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* @author "Luis W. Sevilla" <sevilla_lui@gva.es>
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*/
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public class CmdMeasure extends Cmd { |
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private Point2D ptIni = null; |
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/**
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* Construye un nuevo CmdMeasure para el Canvas.
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* @param canvas
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*/
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public CmdMeasure(CQMapCanvas canvas) {
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super(canvas);
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eventsWanted = LEFT | PRESS | RELEASE; |
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cursor = CQCursor.getCursor(Cursor.CROSSHAIR_CURSOR);
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} |
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/**
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* Recibe los eventos del rat?n.
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*/
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public void cmd(Point2D pt, int btn, int mouseEvent) { |
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if (mouseEvent == Cmd.RELEASE) {
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measure(ptIni, pt); |
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} else if (mouseEvent == Cmd.PRESS) { |
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ptIni = pt; |
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} |
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} |
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/**
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* Mide la distancia entre dos puntos.
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* @param ptIni Punto inicial.
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* @param ptFin Punto final.
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*/void measure(Point2D ptIni, Point2D ptFin) { |
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//canvas.getVPData().pan(ptIni, ptFin);
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//canvas.viewPortChanged();
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//canvas.repaint();
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} |
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} |